Up to 50 total hours of playback with speed chargeWhether you measure your energy output in miles, pounds, or minutes, the JBL Endurance Peak 3 can match you beat for beat, with up to 10 hours of battery power in the earbuds and 40 in the case. And when you need a boost, speed charge up to an hour of playtime in just 10 minutes.JBL Endurance Peak 3 IP68 dust and water proof ImageIP68 dust and water proofAn IP68 rating means the JBL Endurance Peak 3 earbuds are ready for your most active adventures, rain or shine. And theyll endure for 30 minutes at depths up to 1.5 meters of salt or fresh water. So you can surf with your earbuds, or rinse them after a workout, all without missing a beat.